code: def as_dtype(value):
      """Transform string representing dtype in dtype."""
      return _np.dtype(value)
  
file_path: geomstats/geomstats/_backend/_shared_numpy/_common.py
imports: from geomstats._backend._dtype_utils import _np_box_binary_scalar
  from geomstats._backend._dtype_utils import _np_box_unary_scalar
  from geomstats._backend._dtype_utils import _pre_add_default_dtype_by_casting, _pre_allow_complex_dtype, _pre_cast_fout_to_input_dtype, _pre_cast_out_from_dtype, _pre_cast_out_to_input_dtype, _pre_set_default_dtype
  from .._backend_config import np_atol
  from .._backend_config import np_rtol
  from ._dispatch import numpy
label_desc: Use image node_id 4 for calling a global function with example usage: as_dtype(value) and returns: _np